Yes. If you are a W-2 employee, taxes are automatically taken out of your paycheck — federal law requires your employer to withhold federal income tax, Social Security, and Medicare from every check before you see the money.1Office of the Law Revision Counsel. 26 USC 3402 – Income Tax Collected at Source Most workers also see state income tax withheld, and sometimes local tax as well. The amount depends on your income, what you put on Form W-4, and where you live and work.
The one big exception: if you are paid as an independent contractor rather than an employee, nothing is withheld and paying the tax is on you. More on that below.
What Gets Withheld From a W-2 Paycheck
Three federal taxes come out of every employee paycheck automatically.
Federal Income Tax
This is usually the biggest line. The United States uses a progressive system where income is taxed in brackets, so only the portion of your earnings that falls in each higher bracket is taxed at the higher rate.2Internal Revenue Service. Federal Income Tax Rates and Brackets Your employer estimates what you’ll earn for the year based on each pay period and withholds a slice of the projected tax from each check. Weekly paychecks each carry roughly one-fifty-second of the estimate; a monthly paycheck carries about one-twelfth.
How much comes out depends on three things you tell your employer on Form W-4: your filing status, adjustments for dependents or other income, and any extra amount you ask them to withhold.3Internal Revenue Service. Tax Withholding: How to Get It Right
Social Security
You pay 6.2% of your wages toward Social Security, and your employer pays a matching 6.2% on top.4Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax There is a cap: the 6.2% only applies to earnings up to $184,500 in 2026. Once your year-to-date wages pass that threshold, your employer stops withholding Social Security for the rest of the year.5Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet
Medicare
You pay 1.45% of every dollar you earn, with a matching 1.45% from your employer.6Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates Unlike Social Security, Medicare has no wage cap. High earners also pay an extra 0.9% Additional Medicare Tax, and your employer must start withholding that surtax once your wages with them exceed $200,000 in a calendar year, regardless of your filing status.7Internal Revenue Service. Topic No. 560, Additional Medicare Tax
Added together, Social Security and Medicare (known as FICA) take 7.65% out of a typical paycheck, with the employer matching that behind the scenes.
State and Local Taxes
Most states charge income tax, and your employer withholds it alongside the federal amount. A handful of states charge none, so workers there see no state line on the paystub. If you live in one state and work in another, your employer may withhold for both, though some states have reciprocity agreements that simplify things.
Some cities and counties add their own income tax on top. Roughly a third of states authorize local income taxes, and where they exist, employers usually withhold them the same way. A smaller group of states also requires payroll contributions to state disability insurance or paid family leave programs, which show up as separate line items.
Other Deductions You Might See
Not everything that shrinks your paycheck is a tax. Common non-tax deductions include:
- Health insurance premiums, usually taken pre-tax through a Section 125 plan, which lowers the income used to calculate your federal income tax withholding.
- Traditional 401(k) contributions, deducted before federal and usually state income tax, though still subject to FICA. Roth 401(k) contributions come out after taxes.
- Wage garnishments if a court has ordered them. Federal law caps garnishment for ordinary consumer debt at 25% of your disposable earnings; child support orders can reach 50% or 60% depending on whether you support other dependents.8Office of the Law Revision Counsel. 15 USC 1673 – Restriction on Garnishment
Pre-tax benefits like health insurance and traditional 401(k) contributions can noticeably raise your take-home pay compared to a coworker earning the same salary who skips them, because they reduce the wages your employer uses to calculate income tax withholding.
Changing How Much Comes Out
If too much or too little is being withheld, you fix it by giving your employer a new Form W-4. There is no limit on how often you can update it, and the IRS recommends a review after any major life change: marriage, a new child, buying a home, a second job.9Internal Revenue Service. Tax Withholding The IRS also offers a free Tax Withholding Estimator that walks through your income, deductions, and credits, then generates a recommended W-4 you can hand to your payroll office.10Internal Revenue Service. Tax Withholding Estimator Adjusting early in the year spreads the change across more paychecks.
Can You Stop Withholding Entirely?
In narrow cases, yes. You can claim exemption from federal income tax withholding on your W-4 if you owed no federal income tax the prior year and expect to owe none this year.11Internal Revenue Service. Form W-4 – Employee’s Withholding Certificate This mostly applies to workers with very low incomes. The exemption expires each year — if you claimed it for 2026, you must submit a fresh W-4 by February 16, 2027, or your employer will resume default withholding. Even with the exemption, FICA still comes out of every check.
When Taxes Are Not Automatically Withheld
Independent contractors and freelancers are the main exception. If a company pays you as a contractor rather than an employee, no employer-employee relationship exists, and the payer has no withholding duty. You receive the full billed amount, and every dollar of tax is your responsibility to calculate and send in.
Self-employed workers also pay both halves of Social Security and Medicare — a combined self-employment tax of 15.3% (12.4% Social Security plus 2.9% Medicare), on top of regular income tax.12Office of the Law Revision Counsel. 26 USC 1401 – Rate of Tax You can deduct the employer-equivalent half when calculating your adjusted gross income. Instead of paycheck withholding, the IRS expects quarterly estimated payments; missing them can trigger an underpayment penalty.13Internal Revenue Service. Estimated Tax – Top Frequently Asked Questions
Checking That the Right Amount Is Coming Out
Your paystub is the clearest picture. It breaks out each deduction — federal income tax, state income tax, Social Security, Medicare, and any voluntary items — for the current pay period, with a year-to-date column showing the running total since January 1. Compare the year-to-date figure against what you expect to owe for the year at least once or twice, and use the IRS estimator if the numbers look off.
By February 1, 2027, your employer must give you a Form W-2 summarizing your 2026 wages and every dollar withheld.14Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026) When you file, you compare the tax you actually owe against what came out of your checks. Withhold too much and you get a refund; withhold too little and you owe the balance, plus a possible underpayment penalty if the gap is large. Either result is a signal to revisit your W-4 for the next year.